X2-1/x-1

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Solution for X2-1/x-1 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

X^2-(1/x)-1 = 0

X^2-x^-1-1 = 0

-1*x^-1 = -(X^2-1) // : -1

x^-1 = X^2-1

-1 < 0

1/(x^1) = X^2-1 // * x^1

1 = x^1*(X^2-1) // : X^2-1

1/(X^2-1) = x^1

x = 1/(X^2-1)

x = 1/(X^2-1)

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